tl;dr This note will guide you through setting up your own (GPU-accelerated) prover machine(s) for zkSync's upcoming proof system upgrade, Boojum. This is currently for testing purposes only. Context The team behind zkSync Era, Matter Labs, has announced an improved proof system, Boojum, currently running in shadow-proving mode on zkSync Era Mainnet. Boojum comes with Shivini, a library implementing the GPU-accelerated prover utilising the Boojum CUDA library. Prerequisites In order to get set up with Boojum's prover, you'll need the following: Basic GNU/Linux sysadmin knowledge